64670049 has 16 divisors (see below), whose sum is σ = 96096000. Its totient is φ = 42983568.

The previous prime is 64670003. The next prime is 64670069. The reversal of 64670049 is 94007646.

64670049 is a `hidden beast` number, since 646 + 7 + 0 + 0 + 4 + 9 = 666.

It is not a de Polignac number, because 64670049 - 2⁸ = 64669793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64669995 and 64670022.

It is not an unprimeable number, because it can be changed into a prime (64670069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5992 + ... + 12854.

It is an arithmetic number, because the mean of its divisors is an integer number (6006000).

Almost surely, 2^64670049 is an apocalyptic number.

It is an amenable number.

64670049 is a deficient number, since it is larger than the sum of its proper divisors (31425951).

64670049 is a wasteful number, since it uses less digits than its factorization.

64670049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221 (or 7215 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 64670049 is about 8041.7690218011. The cubic root of 64670049 is about 401.3910919663.

The spelling of 64670049 in words is "sixty-four million, six hundred seventy thousand, forty-nine".